B. Valence electron
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Biology, 09.11.2020 22:20 homework1911
An electron in the outermost energy level of an atom
A. Atomic number
B. Valence electron
C. Groups
D. Periods
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Answers: 3
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An electron in the outermost energy level of an atom
A. Atomic number
B. Valence electron
B. Valence electron
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